Pilates Class With Weights As I wrote, I had started pilates classes two weeks ago and I can say that, up to now, every single day we have worked with different tool on it. One day it was a wheel, other an elastic, other a large cylinder made of foam, and today it was weights. Obviously depending on the tool we work different muscles. Today we worked the top side muscles (arms, shoulders, wrists, etc). It was easier for me than other day when the teacher focuses on abs. That kill me, but it's what I need.